Gigawatt Converter
Created by: tinycalcs.com/en
Number of supported units: 24
Last update: 2026
The Gigawatt Converter supports 24 different power units. This makes it possible to convert freely between gigawatts [GW], metric, Anglo-American, and other power units. All power values are converted in real time and displayed with up to 20 decimal places, ensuring sufficient accuracy.
Conversion of gigawatts
In order to convert gigawatts [GW] into another unit of measurement, a conversion value is required. This value can be determined using a conversion table. However, the table is relatively large, confusing, and difficult for inexperienced users to understand. The tool below provides a solution to this problem by allowing the rounded conversion values for gigawatts [GW] to be queried directly from the conversion table.
Determine conversion factor
Conversion between gigawatts and milliwatts
A quick and precise conversion between gigawatts [GW] and milliwatts [mW] is straightforward and requires only multiplication or division by 1012. The conversion from gigawatts [GW] to milliwatts [mW] is done by multiplying the value in gigawatts [GW] by 1012. To reverse the conversion, divide the value in milliwatts [mW] by 1012 to obtain gigawatts [GW].
- Milliwatts [mW] = gigawatts [GW] * 1012
- Gigawatts [GW] = milliwatts [mW] ÷ 1012
Conversion between gigawatts and watts
Conversions between gigawatts [GW] and watts [W] are straightforward and can be performed with simple math. The required conversion factor is 109. To convert a value from gigawatts [GW] to watts [W], multiply the number of gigawatts [GW] by 109. For values in watts [W], divide by 109 to get the equivalent in gigawatts [GW].
- Watts [W] = gigawatts [GW] * 109
- Gigawatts [GW] = watts [W] ÷ 109
Conversion between gigawatts and kilowatts
The conversion between gigawatts [GW] and kilowatts [kW] is quick to perform and requires only basic mathematical operations an the conversion factor 1,000,000. Multiply the number of gigawatts [GW] by 1,000,000 to get the converted value in kilowatts [kW]. To convert a value in kilowatts [kW] back to gigawatts [GW], simply divide the amount of kilowatts [kW] by 1,000,000.
- Kilowatts [kW] = gigawatts [GW] * 1,000,000
- Gigawatts [GW] = kilowatts [kW] ÷ 1,000,000
Conversion between gigawatts and metric horsepower
You can easily convert between metric horsepower [PS] and gigawatts [GW] using the formulas provided below. For accurate results, it is important to follow the correct order of mathematical operations.
- Gigawatts [GW] = metric horsepower [PS] * 735.49875 ÷ 109
- Metric horsepower [PS] = gigawatts [GW] ÷ 735.49875 * 109
Conversion between gigawatts and mechanical horsepower
The fastest and easiest way to convert between mechanical horsepower [hp(I)] and gigawatts [GW] is to use the converter above. Manual conversions are also possible and can be done using the formulas provided below.
- Gigawatts [GW] = mechanical horsepower [hp(I)] * 27.2155422 * 27.3997801 ÷ 109
- Mechanical horsepower [hp(I)] = gigawatts [GW] ÷ 27.2155422 ÷ 27.3997801 * 109
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